Home / 18,019.45-27,003.66-14,119.30

Finding the Fourth Proportional to 18,019.45, 27,003.66 and 14,119.30

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Solution

The fourth proportional to 18,019.45, 27,003.66 and 14,119.30 is: 21,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.45 : 27,003.66 = 14,119.30 : x
  2. Step 2: Convert to fraction form
    18,019.45/27,003.66 = 14,119.30/x
  3. Step 3: Cross multiply
    18,019.45x = 27,003.66 × 14,119.30
  4. Step 4: Simplify right side
    18,019.45x = 381,272,776.64
  5. Step 5: Solve for x
    x = 381,272,776.64/18,019.45
  6. Step 6: Final answer
    x = 21,158.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.